Make "process" a required input and configure pyconf functions globally once with user input

Closes #59 (closed) and closes #74 (closed).

• Make process a required input.
• Make "options.process" as the default input to algorithms (e.g. truth matching).
• Make process a required input to truth-matching algorithm (related to issue: #62 (closed)) and also set correct root-in-tes for Turbo process.

To be tested with: LHCb!3806 (merged), Moore!1812 (merged) and Analysis!914 (merged)

Phys/DaVinci/python/DaVinci/truth_matching.py

@@ -15,13 +15,12 @@ from PyConf.Algorithms import MCTruthAndBkgCatAlg
 from PyConf.Tools import DaVinciSmartAssociator, MCMatchObjP2MCRelator, ParticleDescendants
 from PyConf.Tools import BackgroundCategory, BackgroundCategoryViaRelations
 from PyConf.Tools import P2MCPFromProtoP
-from PyConf.reading import get_pp2mcp_relations, get_mc_particles, get_charged_protoparticles, get_neutral_protoparticles
+from PyConf.reading import get_pp2mcp_relations, get_mc_particles, get_charged_protoparticles, get_neutral_protoparticles, get_stream
 from PyConf.location_prefix import prefix
 
 
 def configured_MCTruthAndBkgCatAlg(
         inputs,
-        process,
         relations_locs=["Relations/ChargedPP2MCP", "Relations/NeutralPP2MCP"],
         root_in_tes=None,
         redo_neutral_assoc=False,
@@ -45,9 +44,8 @@ def configured_MCTruthAndBkgCatAlg(
         inputs (DataHandle): Output of `Gaudi::Hive::FetchDataFromFile` (the input TES location to the particles).
         relations_locs (list, optional): TES locations to the pre-existing relations for charged and neutral particles.
             Defaults to ["Relations/ChargedPP2MCP", "Relations/NeutralPP2MCP"].
-        process (str, optional): Specifies the output being processed i.e. 'Hlt2' or 'Spruce'. Default is 'Spruce'.
         root_in_tes (str, optional): RootInTES location that can be different for streamed output. Defaults is None.
-            If not 'None' then the 'process' argument is completely ignored.
+            If not 'None' then it is inferred from the 'process' option in yaml file.
         redo_neutral_assoc (bool, optional): Whether or not to redo MC association of pure neutral calorimetric basic particle,
             i.e. gamma and pi0-merged with pi0-resolved treated as composite.
             Defaults to False.
@@ -59,26 +57,19 @@ def configured_MCTruthAndBkgCatAlg(
     """
 
     if not root_in_tes:
-        if process == 'Spruce':
-            root_in_tes = '/Event/Spruce/HLT2'
-        elif process == 'Hlt2' or process == 'Turbo':
-            root_in_tes = '/Event/HLT2'
-        else:
-            raise ValueError(
-                f"The specified 'process' {process} is not recognised. Can only be 'Hlt2' or 'Spruce' or 'Turbo'. Please check!"
-            )
+      root_in_tes = get_stream()
 
     # No algorithm is asking for mc particles and proto particles explicitely
     # But pp2mcp relation unpacker needs them, so give them as extra_inputs
     extra_inputs = []
-    extra_inputs += [get_charged_protoparticles(process)]
-    extra_inputs += [get_neutral_protoparticles(process)]
+    extra_inputs += [get_charged_protoparticles()]
+    extra_inputs += [get_neutral_protoparticles()]
 
     mc_loc = root_in_tes + "/MC/Particles"
     extra_inputs += [get_mc_particles(mc_loc)]
 
     relations = [
-        get_pp2mcp_relations(prefix(rel, root_in_tes), process, extra_inputs)
+        get_pp2mcp_relations(prefix(rel, root_in_tes), extra_inputs)
         for rel in relations_locs
     ]